Answers are grounded in this paper and cite their sources.
Pearly penile papules share histologic features in common with other acral angiofibromas: adenoma sebaceum, subungual and periungual fibromas, fibrous papule of the nose (face), acquired acral angiofibroma, and oral fibroma.
No takes yet. Share an insight, caveat, or question.
A. Bernard Ackerman (1973) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: